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10 January, 12:44

Given that A=84, B=66 and a=13 solve triangle ABC. Round to the nearest hundredth.

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  1. 10 January, 13:09
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    Using the sine rule

    b / sin B = a / sin A so:-

    b / sin 66 = 13 / sin 84th

    Angle C = 180 - (66+84) = 30 degrees

    c / sin 30 = 13/sin84

    c = (13*sin 30) / sin 84 = 6.54 to nearest 1/100th

    That s it.
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